I came to ask the same. Many scenes appear to happen this episode that weren't in the book, i.e. Theon, Mel/Gendry, Robb/Talisa. Hopefully you merely wanted fresh material to pen; even if D&D wrote them and they are well done, I want a pure GRRM episode! (The bear scene still counts as your scene because it was in the original text -- well, if it is faithful.)